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Is Pentamethylheptenone vegetarian?

Pentamethylheptenone

Vegetarian Vegetarian
Vegan Vegan

Pentamethylheptenone is a synthetic organic ketone compound used as a fragrance ingredient in perfumery, existing as cis and trans isomers.

Also known as (E)-3,4,5,6,6-Pentamethylhept-3-en-2-one, (E)-3,4,5,6,6-Pentamethylhept-3-en-2-one (trans), (Z)-3,4,5,6,6-Pentamethylhept-3-en-2-one, (Z)-3,4,5,6,6-Pentamethylhept-3-en-2-one (cis), 279-823-4, 81786-74-5
INCI name Pentamethylheptenone
CAS number 81786-73-4
EC number 279-822-9
CosIng ID 40576
Last reviewed 9 July 2026

An ingredient is considered vegetarian if it avoids components derived from killing an animal.

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